class Student:
    def __init__(self, name, age):
        self.name = name
        self.age = age
    def students(self, name):
        self.name = name
        print("student's name is "+self.name)
        print("student's age is", self.age)
        print("%s age is %d" % (self.name, self.age))


s1 = Student('hxz', 13)
s2 = Student('jc', 15)
s1.students('jc')
s2.students('hxz')